Credit: Chris Christo

The 22-year-old man accused of bludgeoning his mother, his grandparents and the elderly couple’s caretaker to death last Friday with a baseball bat at their Groton home is being held for a psychiatric evaluation.

Ayer District Court Judge Margaret R. Guzman ordered Orion Krause of Rockport, Maine, to be held without bail at Bridgewater State Hospital until an Oct. 30 hearing on his competency to stand trial on four counts of murder.

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